Is Your AC Ready for a Heatwave? Expert Tips for a Reliable System
Prepare your AC for a heatwave with these expert tips to avoid breakdowns and keep your home cool when it matters most.

Summer’s scorching days are coming, and nothing feels worse than your AC breaking down in the middle of a heatwave. But is your system truly ready? If not, you could face unexpected breakdowns, high energy bills, and unbearable indoor heat. Before you end up Googling emergency repair services while sweating in your living room, now is the time to get your system checked and ready.
Repair My Central Air offers professional AC services, AC maintenance, and emergency AC repair to keep your home cool when temperatures soar. By taking simple, proactive steps now, you can avoid sudden failures and high costs during peak summer heat.
Why Preparing Your AC for a Heatwave Matters
Heatwaves cause AC systems to work harder and longer, stressing old parts and inefficient systems to the point of failure. When your AC isn’t ready, you risk:
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Sudden breakdowns during the hottest days
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High energy bills from overworked systems
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Reduced indoor air quality and humidity issues
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Costly emergency repairs or complete replacements
Instead of waiting for disaster, a proactive approach will ensure consistent comfort and lower energy use all summer.
1. Schedule a Pre-Heatwave Professional Tune-Up
An AC tune-up is like an annual check-up for your system. During this, a technician will:
✅ Inspect refrigerant levels and top off if needed
✅ Check electrical connections for safety
✅ Clean condenser and evaporator coils
✅ Inspect the blower motor and belts
✅ Calibrate the thermostat for accurate cooling
Tip: Book early before heat waves arrive, as HVAC companies get swamped during peak summer emergencies.
2. Replace or Clean Air Filters
Dirty filters restrict airflow, forcing your AC to work harder, reducing efficiency, and leading to potential breakdowns.
Best Practice:
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Check your filters monthly during heavy use.
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Replace or clean them at least every 30-60 days.
Clean filters also improve indoor air quality, helping you breathe easier during allergy-heavy months.
3. Check Your Thermostat Settings
Program your thermostat for efficient cooling during peak hours. Set it:
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78°F when home
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85°F when away
Consider upgrading to a smart thermostat that automatically adjusts temperatures to save energy and keep your home consistently cool without manual changes.
4. Inspect Outdoor Unit Clearance
Overgrown bushes, leaves, or debris around your outdoor condenser unit can block airflow, causing your AC to overheat.
Do this today:
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Trim plants at least 2 feet away from the unit.
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Remove leaves or debris from around and on top of the unit.
5. Seal Air Leaks and Insulate
Cool air escaping through poor insulation or leaks forces your AC to run longer, increasing your bills and wear on the system.
Steps:
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Check windows and doors for drafts; use weatherstripping where needed.
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Inspect attic insulation and consider adding more if it’s insufficient.
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Seal ductwork leaks to improve airflow.
6. Monitor Unusual Noises or Performance
Strange sounds like rattling, grinding, or hissing indicate potential problems, while inconsistent cooling signals low refrigerant, airflow issues, or a failing compressor.
If you notice these, call a professional immediately to avoid bigger, costlier failures during a heatwave.
7. Consider Upgrading Your AC
If your AC is over 12-15 years old, it may struggle to handle heat waves efficiently. Older systems:
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Consume more energy
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Provide inconsistent cooling
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Are prone to breakdowns
Replacing it with a high-efficiency system will improve comfort, lower energy bills, and prepare your home for future heat waves.
What to Do During a Heatwave If Your AC Fails
Despite preparation, unexpected issues can still occur. In that case:
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Use ceiling fans to circulate air.
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Keep blinds closed to reduce indoor heat gain.
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Use cool, damp towels on your neck and wrists.
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Stay hydrated and avoid using heat-generating appliances during the day.
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Call for emergency AC repair immediately to minimize discomfort.
Repair My Central Air provides fast emergency AC repair services to restore your comfort quickly, even during extreme heat.
Conclusion
Preparing your AC system before a heatwave isn’t just about comfort; it’s about avoiding stress, costly repairs, and health risks from extreme heat. By scheduling a professional tune-up, replacing filters, sealing leaks, and monitoring your system, you can ensure a reliable and efficient AC that will keep your home cool when you need it most.
Is your AC ready for the next heatwave, or are you risking an uncomfortable, expensive breakdown? Share your AC maintenance experiences below, or let us know your biggest concern about your system this summer!